Technical Info

Nanoscale zero-valent iron (NZvi), i.e. zero-valent iron particles with a particle size of 1 to 100 nanometers, has the characteristics of strong reducibility, large specific surface area and high reactivity. Unlike macroscopic materials, nano material NZVI has four unique effects: small size effect, surface effect, quantum effect and macroscopic quantum tunneling effect, thus having excellent adsorption capacity and high reducibility, which can significantly improve the reactivity and processing efficiency of nanoscale zero-valent iron materials.

In this article, Sagwell will explore the issue of "the influence of high-purity iron powder on iron-based alloy powder matrix" from the perspective of diamond tool performance.

Zero-valent iron can be used as a reducing agent in sewage treatment and has great potential in the field of water pollutant treatment. Nano-scale zero-valent iron has a large specific surface area, and the atoms on the surface of nano-metals have high chemical activity and are active sites for adsorption, thus showing strong adsorption performance. Compared with ordinary zero-valent iron materials, nano-zero-valent iron has both reducing and adsorbing properties, and has greater advantages in the field of water environment pollutant removal.

When the emulsified zero-valent iron technology was still in the research and development stage, Sagwell began to provide its core raw material - micron-level zero-valent iron to related companies. At present, the technology has been widely used in remediation projects in the United States, Canada and Australia.

Sagwell provides 3 kinds of environmental remediation iron powders (ultrafine iron powder, zero valent iron, spherical porous iron powder) and 1 kind of alloy powder (iron-nickel bimetallic) for industrial wastewater treatment, groundwater remediation or soil remediation, etc., which can meet the needs of different sites.

In recent years, the Sino-US tariff war has continued to escalate, especially the "Liberation Day" high tariff policy implemented by the Trump administration after taking office in 2025, which has posed a severe challenge to the cooperation between Chinese and American companies. In this environment, dozens of tons of zero valent iron (hereinafter referred to as ZVI products) from Sagwell were successfully shipped to the United States, reflecting the irreplaceable nature of our products in the field of global soil and groundwater pollution remediation.

In the field of diamond tool manufacturing, the particle size, uniformity and quality of diamond tool matrix powder directly determine the performance of the tool. Sagwell ultrafine alloy powder (2-15μm) has a high specific surface area of ​​4-6m²/g, which achieves dense coating of diamond particles and matrix, improves the density of the matrix, and reduces the porosity from the traditional 5.8% to 2.3%.

According to the survey, many of Sagwell's customers have recently transformed into making diamond tool matrixes with iron-based alloy powders. The biggest advantage of this matrix is ​​that it can save costs and make their products more competitive in the market. So, for high-iron-based matrixes, do you know how to maximize its role?

The performance of diamond tools also depends on the design of the binder. Ultrafine iron powder (particle size 1-20μm) becomes a key material by enhancing sintering activity and interface bonding strength. The addition amount of ultrafine iron powder is usually 5%-30% of the total mass of the binder, while cutting tools require 15%-25%, and precision grinding tools are reduced to 8%-12%. According to Sagwell's research, optimizing the particle size distribution of iron powder can reduce porosity and improve the stability of diamond tools when processing hard and brittle materials.